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ci: harden GitHub Actions supply chain - #130

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D3f0 merged 2 commits into
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security/harden-github-actions-supply-chain
Aug 18, 2026
Merged

ci: harden GitHub Actions supply chain#130
D3f0 merged 2 commits into
mainfrom
security/harden-github-actions-supply-chain

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@D3f0

@D3f0 D3f0 commented Aug 17, 2026

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Summary

  • pin all 10 third-party GitHub Actions to reviewed immutable commit SHAs
  • replace archived actions/create-release@v1 with gh release create --verify-tag
  • preserve release title and notes while moving GitHub expressions out of shell scripts

Closes #129

Verification

  • actionlint -config-file .github/actionlint-config.yaml .github/workflows/*.yaml
  • workflow YAML parsing with PyYAML
  • invariant check: 10 SHA-pinned action references; archived action removed; release tag verification enabled
  • uv run nox — 665 passed, 23 skipped across Python 3.11–3.14

zizmor confirms no unpinned-uses or archived-uses findings remain. Its unrelated pre-existing findings (credential persistence, cache-poisoning, and excessive workflow-level permissions) remain outside this issue scope.

@D3f0
D3f0 merged commit 02ac71d into main Aug 18, 2026
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Harden GitHub Actions supply chain

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